import { Link } from 'react-router-dom'
import { Card, Breadcrumb, Form, Button, Radio, DatePicker, Select, Popconfirm } from 'antd'
// 引入汉化包 时间选择器显示中文
import locale from 'antd/es/date-picker/locale/zh_CN'

// 导入资源
import { Table, Tag, Space } from 'antd'
import { EditOutlined, DeleteOutlined } from '@ant-design/icons'
import img404 from '@/assets/error.png'
import { useChannels } from '@/hooks/useChannels'
import { delArticleAPI, getArticleListAPI } from '@/apis/article'

import { useState, useEffect } from 'react'
import { useNavigate } from 'react-router-dom'

const { Option } = Select
const { RangePicker } = DatePicker

const Article = () => {
  const navigate = useNavigate()

  const { channelList } = useChannels()

  // 定义状态枚举
  const status = {
    0: <Tag color="primary">草稿</Tag>,
    1: <Tag color="warning">待审核</Tag>,
    2: <Tag color="success">审核通过</Tag>,
    3: <Tag color="danger">审核失败</Tag>,
  }

  // 准备列数据
  const columns = [
    {
      title: '封面',
      dataIndex: 'cover',
      width: 120,
      render: (cover) => {
        return <img src={cover.images[0] || img404} width={80} height={60} alt="" />
      },
    },
    {
      title: '标题',
      dataIndex: 'title',
      width: 220,
    },
    {
      title: '状态',
      dataIndex: 'status',
      // data - 后端返回的状态 status 根据它做条件渲染
      // data === 0 => 草稿
      // data === 1 => 待审核
      // data === 2 => 审核通过
      // data === 3 => 审核失败
      render: (data) => status[data],
    },
    {
      title: '发布时间',
      dataIndex: 'pubdate',
    },
    {
      title: '阅读数',
      dataIndex: 'read_count',
    },
    {
      title: '评论数',
      dataIndex: 'comment_count',
    },
    {
      title: '点赞数',
      dataIndex: 'like_count',
    },
    {
      title: '操作',
      render: (data) => {
        return (
          <Space size="middle">
            <Button type="primary" shape="circle" icon={<EditOutlined />} onClick={() => navigate(`/publish?id=${data.id}`)} />
            <Popconfirm title="删除文章" description="确认要删除当前文章吗？" okText="Yes" cancelText="No" onConfirm={() => onConfirm(data)}>
              <Button type="primary" danger shape="circle" icon={<DeleteOutlined />} />
            </Popconfirm>
          </Space>
        )
      },
    },
  ]

  // 筛选功能
  // 1. 准备参数
  const [reqData, setReqData] = useState({
    status: '',
    channel_id: '',
    begin_pubdate: '',
    end_pubdate: '',
    page: 1,
    per_page: 4,
  })

  // 获取文章列表
  const [list, setList] = useState([])
  const [count, setCount] = useState(0)
  useEffect(() => {
    async function getList() {
      const res = await getArticleListAPI(reqData)
      setList(res.data.results)
      setCount(res.data.total_count)
    }
    getList()
  }, [reqData])

  // 2. 获取筛选数据
  const onFinish = (formValue) => {
    // console.log(formValue)
    // 3. 把表单收集到的数据放到参数中(不可变的方式)
    setReqData({
      ...reqData,
      channel_id: formValue.channel_id,
      status: formValue.status,
      begin_pubdate: formValue.date?.[0].format('YYYY-MM-DD'),
      end_pubdate: formValue.date?.[1].format('YYYY-MM-DD'),
      page: 1,
    })
    // 4. 重新拉取文章列表 + 渲染 table 逻辑重复的 - 复用
    // reqData 依赖项发生变化 重复执行副作用函数
  }

  // 分页
  const onPageChange = (page) => {
    // 修改参数依赖项 引发数据的重新获取列表渲染
    setReqData({
      ...reqData,
      page,
    })
  }

  // 删除
  const onConfirm = async (data) => {
    // console.log('删除点击了', data)
    await delArticleAPI(data.id)
    setReqData({
      ...reqData,
      page: list.length > 1 ? reqData.page : reqData.page - 1,
    })
  }

  return (
    <div>
      <Card title={<Breadcrumb items={[{ title: <Link to={'/'}>首页</Link> }, { title: '文章列表' }]} />} style={{ marginBottom: 20 }}>
        <Form initialValues={{ status: '' }} onFinish={onFinish}>
          <Form.Item label="状态" name="status">
            <Radio.Group>
              <Radio value={''}>全部</Radio>
              <Radio value={1}>待审核</Radio>
              <Radio value={2}>审核通过</Radio>
            </Radio.Group>
          </Form.Item>

          <Form.Item label="频道" name="channel_id">
            <Select placeholder="请选择文章频道" style={{ width: 288 }}>
              {channelList.map((item) => (
                <Option key={item.id} value={item.id}>
                  {item.name}
                </Option>
              ))}
            </Select>
          </Form.Item>

          <Form.Item label="日期" name="date">
            {/* 传入locale属性 控制中文显示*/}
            <RangePicker locale={locale}></RangePicker>
          </Form.Item>

          <Form.Item>
            <Button type="primary" htmlType="submit" style={{ marginLeft: 40 }}>
              筛选
            </Button>
          </Form.Item>
        </Form>
      </Card>
      {/* 表格区域 */}
      <Card title={`根据筛选条件共查询到 ${count} 条结果：`}>
        <Table
          rowKey="id"
          columns={columns}
          dataSource={list}
          pagination={{
            total: count,
            pageSize: reqData.per_page,
            onChange: onPageChange,
            position: ['bottomCenter'],
          }}
        />
      </Card>
    </div>
  )
}

export default Article
